Home / 18,413.32-25,399.62-13,371.64

Finding the Fourth Proportional to 18,413.32, 25,399.62 and 13,371.64

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Solution

The fourth proportional to 18,413.32, 25,399.62 and 13,371.64 is: 18,445.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,413.32 : 25,399.62 = 13,371.64 : x
  2. Step 2: Convert to fraction form
    18,413.32/25,399.62 = 13,371.64/x
  3. Step 3: Cross multiply
    18,413.32x = 25,399.62 × 13,371.64
  4. Step 4: Simplify right side
    18,413.32x = 339,634,574.78
  5. Step 5: Solve for x
    x = 339,634,574.78/18,413.32
  6. Step 6: Final answer
    x = 18,445.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.